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Патент USA US3065479

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Nov. 27-, 1962 .
R. HfR. PARKER
3,065,469
BRUSH MAKING MACHINES
Filed April 11, 1960
4 Sheets-sheaf 1
INVENTOR
RHR. PARKER
ATTORNEY
Nov. 27, 1962
3,065,469
R. H. R. PARKER
BRUSH MAKING MACHINES
Filed April 11, 1960
4 Sheeis-Sheet 2
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R.H._P\. PARKE'R
BY
ATTORNEY
Nov. 27, 1962
R. H. R. PARKER
3,065,469
BRUSH MAKING MACHINES
Filed April 11, 1960
4 Sheets-Sheet s
_|NVENTOR
ATTOR NEY
Nov. 27, .1962
3,065,469
R. H. R. PARKER
BRUSH MAKING MACHINES
‘Filed April 11, 1960
4 Sheets-Sheet 4
.Q
' INVENTOR
R.\-\.R.PHRKER
B
LLJZMLQ. WM“
ATTORNEY
United States Patent ()??ce
3,065,469
Patented Nov. 27, 1962
i
2
aessasa
pivoted to a lug 15a on the slide and the other end
pivoted to a lever 15b adapted to be rocked about its
BRUSH MAKING MACES
Russell Henry Richard Parker, Portehester, England, as
signor to J. Evans dz Son (Portsmouth) Limited, Ports
mouth, England
Filed Apr. 11, 196i), Ser. No. 21,177
Claims priority, application Great Britain Apr. 10, 1959
6 Claims. (Cl. 1-2)
pivot 15c by a rotary cam ‘15d engaging a roller 15s
on the lever 15b. The lever is urged towards the cam
by a springing 15]‘. The slide has a bracket 16 pivotably
mounted at 17, the bracket supporting wire grippers
comprising a jaw 18 ?xed on the bracket 16 and a jaw
19' pivoted on the bracket and normally urged by a spring
2t} towards the jaw 18 to grip a strip of wire a. The
This invention relates to tuft inserting apparatus for 10 bracket 16 carries a roller 21 in rolling engagement with
brush making machines of the kind where a reciprocat
a plate 22 hingedly mounted at 23 (FIG. la) on the
ing driver is provided adapted on its forward stroke to
body 1, the bracket being urged into a position, wherein
feed a staple and tuft of bristles to a brush stock and
the roller engages the plate, by a leaf spring 24.
drive in the staple to anchor the tuft in a hole in the
The hinged plate 22 is pivotally connected at 25a with a
brush stock.
15 rod 25 attached to a lever 26 carrying a roller 27 engag
According to the present invention the tuft inserting
ing a cam 28. The roller is held against the cam by a
apparatus includes grippers for receiving a strip of wire
spring 26a connected with the lever.
to form a staple, means operative, when the driver blade
In operation the tool slide and staple driver are re
is in its rearward position, to actuate the grippers to grip
ciprocated by levers 15b and 5 respectively in timed se
a strip of wire and position it so as to extend trans
versely of the path of movement of the driver blade,
and moving the grippers rearwardly to draw the wire
strip against laterally spaced abutments to form a sta
ple in the guideway along which the driver blade recip
rocates so as to be positioned to be fed to the brush stock
by the, driver blade on its next forward tuft inserting
stroke.
To enable the invention to be fully understood it will
now be described with reference to the accompanying
drawings in which:
FIGURE 1 is a side view of tuft inserting apparatus
according to one embodiment of the invention, the tool
slide being shown in its retracted or rearward position;
FIG. 1a is a fragmentary view illustrating the con
nection of the rod 25 to the plate 22;
FIGURE 52 is a fragmentary view showing the tool
20 quence to form a staple and drive it into a brush stock to
secure a tuft of bristles.
In FIGURE 1 the tool slide and staple driver are
shown in the rearward position and it will be noted that
the pivoted jaw 11% has engaged at stop 29 and has been
pivoted away from the ?xed jaw 18 to permit the end
of a length of a wire a to be fed through a bush 30 be
tween the jaws. It will also be noted that the plate 22 is
at its uppermost position and the bracket 16 is accord~
ingly also in its upper position such that the gripper jaws
are disposed above the staple forming plates 6, and
above the path of travel or" the driver and adjacent the
bush 3%} through which the wire to form the staples is
fed from a supply reel (not shown).
As the slide 9 is moved forwardly the jaw 19 leaves
- the stop 29 and the jaw is moved by its spring 20 to grip
the inserted wire.
slide in partly retracted position;
The slide carries a knife 9a (FIGS. 2a and 3) which,
FIG. 2a is a fragmentary view illustrating the relative
as the slide moves forwardly passes across the delivery
position of the bush and cutter;
end of the bush 3i? and shears off a length of wire.
FIGURE 3 is a sectional View, taken on line A-—A of 40
The slide is fed to the end of its forward stroke and
FIGURE 1;
FIG. 3a is a fragmentary view on an enlarged scale
illustrating the slot 8 and how the staple is retained;
FIGURE 4 is a side view, partly in section, of a modi
tied form of the invention;
FIG. 5 is a plan view of FIG. 4 showing the means
for feeding tufts of bristles;
FIGURE 6 is a fragmentary side view thereof showing
the tool slide in partly retracted position with the grippers
positioned in alignment with the guideway of the driver;
and
FIGURE 7 is a sectional view on line 8-1?» of FIG
URE 4.
As shown in FIGURES l to 311 of the accompanying
drawings a body member ‘I is formed with an axial
slot or passage 2 in which a staple driver 3 is reciproca
bly mounted, the driver being held in a clamp 4 connected
to a lever 5 pivoted at 5:1. The lower end of the lever
5 is pivoted to one end of a link 51) whose opposite end
is ‘pivoted at 5c to a rotating cam 28.
At its forward end the body It has two pairs of side
plates 6, '7 the plates 6 de?ning a slot or opening 3
aligned with the passage 2, the forward ends of the plates
6 forming abutments against which a strip of wire is
adapted to be bent to form a staple.
A tool slide a is slidably mounted on the forward end
of the body 1 and carries guide means comprising super
the staple driver is reciprocated forwardly but in the initial
setting up of the machine no staple will have been pre
pared and the driver 3 therefore makes an idle stroke.
The tool slide ‘9 and driver 3 are now moved rear
wardly and during this movement, the rod 25 is drawn
downwardly by the action of the cam 28 and the bracket
‘16 is caused to assume its lower position indicated in
FIGURE 2 wherein the wire a is positioned so as to
extend transversely of the slot 8. During the last part of
the rearward movement the jaws I18, v19 pass into the slot
8 and the opposed ends of the wire strip which project
laterally of the jaws are drawn against the edges of the
plates 6 with the result that the wire will be bent into
U-shape to form a staple. By reason of its longer stroke
and timed operation, the staple driver will have been
withdrawn clear of the gap between the plates 6 and 10
and 11 atv this point of the operation.
As shown in FIG. 3a, the slot 8 has recesses 8a into
which the legs of the U-shaped staple extend when the
staple is formed.
At the end of the rearward stroke of the tool slide the
cam 28 allows the rod 25 to rise and the bracket 16 as.
sumes its upper position, the jaws 18, 19, now being sepa
65 rated by the stop 2?, are carried upwardly with the
bracket 16, leaving the formed staple in the slot 8 at
the forward end of the passage 2 in the path of move
ment of the staple driver 3 where it is retained by its
posed cheek plates 1h-11 the inner opposed surfaces
legs being located in the recesses do.
of which de?ne a channel through which a tuft of bris
When the tool slide and staple driver make the next
70
tles and a staple are adapted to be fed by the driver.
forward stroke, the latter will engage the formed staple
The slide 9 is reciprocated by a rod 15 having one end
and feed it forwardly, picking up a tuft of bristles fed to
the gap between the rear end of the tool slide and the
forward end of the plates 6, and drive the staple and
tuft through the channel between the plates It}, 11 of
the tool slide 9 so that the tuft will be inserted into the
brush stock. The tool slide remains stationary for a
short period of time before the driver blade starts its
next forward stroke and during this period a fresh strip
of wire is fed between the open jaws for forming the next
staple.
It will be understood that the tuft of bristles is fed
from a magazine by a picker of known kind, for example
as illustrated in FIG. 5. The tuft is fed into the said gap
in line with the slot 8 in which the formed staple is
located.
‘
The cycle of operations is repeated so that for each 15
complete reciprocation of the tool and driver, .a tuft of
21a to grip a strip of wire a fed through a bush 30a from a
supply reel.
The slide 14a is provided with a lug 25a connected to
an actuating rod or lever (not shown) which is operable
by means in the brush making machine to impart a re
ciprocating movement to the slide.
In FIGURE 4 of the drawings the slides and associated
parts ‘are in their rearward position which they will as
sume at the start of a tuft inserting operation. A tuft of
bristles t has been inserted by a picker 1% from a maga
zine 101 containing a supply of bristles T, the tuft being
positioned in the gap between the rear end of the tool
slide and the forward end of the plates 6a and 7a. A
staple has been formed in the slot 8 and retained in the
recesses 8a‘
As the driver blade 3b is driven forwardly it will feed
bristles will be anchor-ed in the brush stock and a staple
formed and positioned ready for the next tuft to be an
chored.
the staple .to engage the tuft of bristles t and drive the
is visible and any irregularities can be observed and the
necessary action taken; further it is easier to make ad
necessary for the understanding of the present invention.
When the insertion of a tuft has been completed the
staple and tuft through the channel de?ned by the cheek
plates 11a, 12a and into the brush stock.
An important advantage of the invention is that the 20 The operation of the picker for feeding tufts of bristles
is well-known in the art and further description is not
feeding of the wire and forming and feeding of the staple
driver blade moves on its return stroke and is withdrawn
justments for different lengths of wire. For example if
it is desired to form staples from a relatively long length 25 from the plates 11a, 12a into its guideway in the slide 1411
the tool slide being also reciprocated rearwardly until it
of wire, the bush "3%) is moved laterally outwards (to the
is again in the position indicated in FIGURE 4. It will
left in FIG. 3) so that the outlet end is spaced further
be understood that the driver blade and tool slide will be
from the wire gripping jaws. The knife 9a is also moved
reciprocated in timed sequence and at different rates to
to lie adjacent the new position of the outlet end of the
bush 30 so that a longer length of wire will be cut off. 30 effect these movements.
When the gripper slide 1411 is in its rearmost position
If a shorter length of wire is required, the bush and knife
(FIGURE 4) the pivoted jaw 22a is engaged by the stop
are moved inwardly i.e. to the right in FIG. 3. The knife
26a on the member 19a such that the jaw is pivoted to
is secured in adjusted position by a bolt 9b. The feed
move its lower end away from the ?xed jaw 21a. And
of the staple is also simpli?ed and there is therefore less
shown the free end of a continuous strip of wire a
risk of it being misaligned during feeding as sometimes 35 as
has been fed between the jaws. The gripper slide 14a
happens in previously known machines, particularly when
is reciprocated in a forward direction as the driver blade
small staples are used.
moves on its forward stroke and during the initial part
According to the embodiment illustrated FIGURES
of this stroke the jaw 22a leaves the stop 26a to permit the
4 to 7 of the accompanying drawings instead of the grip
40 jaw to be moved by the spring 23a towards the ?xed jaw
pers being carried by the tool slide they are mounted on
a separately reciprocated slide. As shown a body mem
ber 1a is formed with an axial slot 2a ‘which serves as a
so as to grip the inserted strip of wire which is cut off
from the supply roller by a cutter 27a so as to leave a
portion of wire strip between the jaws of the correct
guideway for a slide <14a which is slotted to form a guide
length for forming a staple.
for the staple driver 3a having a driver blade ‘31). The
The gripper slide is moved forwardly from its normal
inner end of the driver is secured to a clamp 4a having 45 position spaced inwardly of the open end of the guideway
a lug ‘50 connectible to an actuating rod such as the rod
2a to a position spaced forwardly thereof. The driver
15 of FIG. 1 which is actuated by lever and cam means
blade and tool slide are moved rearwardly in. timed se
similar to the lever 5 and 28 of FIG. 1.
quence but at different speeds such that when the driver
‘The forward end ‘of the body ‘1a is provided with later
blade enters its guideway on the return stroke, a space
50
ally spaced plates 6a, 7a de?ning a slot or opening 8a
will be left between the rear end of the plates 11a, 12a
aligned with the guideway 2a. The plates form abut
and the forward end of the plates 6a, 7a. During this
ments against which a strip of wire is bent to form a
part of the return movement the gripper member 14b
staple.
which will have been moved forwardly over this space,
A tool slide 9b is slidably mounted in a longitudinally
is pivoted downwardly by actuating the rod connected
55
extending recess ‘10a in the body 1a and at its forward
with the lug 2% such that the gripper jaws will be posi
end carries guide or cheek plates 11a, 12a between which
tioned in the path of movement of the driver blade as
a tuft of bristles and a staple for securing them in a brush
indicated in FIGURE 6. When in this position the strip
stock, are adapted to be fed by the driver blade. The
of wire held by the grippers, will be disposed transversely
slide ‘912 is adapted to be reciprocated in the recess 10a
of
the guideway with the opposite ends extending laterally
by an actuating rod (not shown) and connectible with a 60 of the slot 8 de?ned by the abutment plates 6a, 7a.
lug 13a the actuating rod being operated by cam or like
The gripper slide is then reciprocated rearwardly to
means in the brush making machine, similar to the lever
move the jaws into the slot 8 so that the opposed ends of
15b and cam 15d of FIG. 1.
the strip which extend laterally of the jaws, will be drawn
A gripper slide 14a is reciprocately mounted in the 65 against the plates 6a, 7a and the strip will be bent to
longitudinal recess 2a in the upper portion of the body
form a ‘U-shaped staple.
la and a member 14b is pivoted to this slide at 16a. The
Towards the end of the rearward stroke of the gripper
member 14b is provided with a roller 17a engageable in
slide the pivoted jaw 22a will re-engage the stop 26a and
a guideway 18a in a member 19a which has a lug 20a
be pivoted into open position to release the staple and the
connectible to an actuating rod similar to the rod 25 of 70 member 19a is then moved upwardly to lift the jaws out
of the slot 8 leaving the formed staple in the slot 8 at the
FIG. 1 which is adapted to be raised and lowered by a
entrance of the guideway 2a wherein it is retained in the
cam similar to cam 28 of FIG. 1.
recesses 8a. The formed staple is accordingly positioned
At its forward end the member 14b has a ?xed wire
in the path of the driver blade. When the rearward move
strip gripping jaw 21a and a pivoted jaw 22a the latter
being normally biased by a spring 23a towards the jaw 75 ment of the gripper slide is completed the parts are in
5
3,065,469
the position indicated in FIGURE 4 of the drawings
ready for the feeding in of another length of wire strip
for forming the next staple.
It Will be understood that in the initial setting up of the
machine, no staple will have been prepared and accord
ingly the driver blade and tool slide will make an idle
stroke. [During the rearward movement of these parts,
however, the gripper slide will be reciprocated as de
6
cation of said driver, means for guiding a staple ‘form
ing strip of wire to said jaws, laterally spaced abutments
adjacent the path of reciprocation of said driver, means
operable at the start of the forward stroke of said jaws
to actuate them into closed position to grip said strip of
wire, means operable at the end of said forward stroke of
said jaws to move said jaws to position the strip of wire
gripped thereby in alignment with said driver trans
scribed above, to form a staple and position it in the slot
versely of said abutments so as to be drawn against said
8 in the path of the driver blade such that on the next 10 abutments and bent into the form of a staple on the rear
forward stroke of the latter, the formed staple will be
ward stroke of said jaws, means operable at the end of
fed by the blade to anchor a tuft of bristles in a hole in
the rearward stroke of said jaws to open said jaws to
the brush stock and the cycle of operations repeated.
release said staple at a point in the path of said driver
An important advantage of the invention is that the
so as to be driven forwardly by said driver on the next
feeding of the wire and forming and feeding of the staple 15 forward stroke of said driver.
is visible and any irregularities can be observed and the
necessary action taken; further it is easier to make ad
justments for different lengths of Wire as hereinbefore
described. The feed of the staple is also simpli?ed and
4. In a brush making machine, the combination of
means for forming and driving a staple to secure a tuft
of bristles in a brush stock comprising a reciprocably
mounted staple driver, pivotally mounted gripper jaws,
there is therefore less risk of it being misaligned during 20 means for effecting reciprocating movement of said grip
feeding as sometimes happens in previously known ma~
per jaws in a path parallel to the path of reciprocation of
chines, particularly when small staples are used.
said driver, means for guiding a staple forming strip
The embodiment illustrated in FIGURES 4 to 7 of the
of wire to said jaws, laterally spaced abutments adjacent
accompanying drawings is particularly advantageous
the path of reciprocation of said driver, means operable
where a relatively long interval of time is required for 25 at the start of the forward stroke of said jaws to close said
feeding in the wire strip, for example, where a large staple
jaws to grip said strip of wire, means operable at the end
is required necessitating the feeding in of relatively long
of said forward stroke of said jaws to pivot said jaws
portion of the wire strip. By mounting the grippers on a
to position the strip of wire gripped thereby in alignment
separate slide it is possible to arrange that this slide re
with said driver transversely of said abutments so as to
mains stationary ‘for a suf?ciently long period of time 30 be drawn against said abutments and bent into the form
for the feeding in of the wire strip. For example, the
of a staple on the rearward stroke of said jaws, means
gripper slide can be arranged to remain stationary in wire
operable at the end of the rearward stroke of said jaws
feeding position during the time taken by the driver blade
to open said jaws to release said staple at a point in the
to move through the ?nal stages of its rearward stroke
path of said driver so as to be driven forwardly by said
and the initial stages of the next forward stroke.
35 driver on the next forward stroke of said driver.
I claim:
5. In a brush making machine, the combination of
1. In a brush making machine, the combination of
means for forming and driving a staple to secure a tuft
means for forming and driving a staple to secure a tuft of
of bristles in a brush stock comprising a reciprocably
bristles in a brush stock comprising a reciprocably
mounted staple driver, a reciprocably mounted tool slide
mounted staple driver, a reciprocably mounted tool slide 40 for guiding said staple into said brush stock to secure a
for guiding said staple into said brush stock to secure
tuft of bristles, a ‘further reciprocably mounted slide,
a tuft of bristles, gripper ‘jaws movably mounted on said
gripper jaws movably mounted on said further slide,
tool slide, means for reciprocating said tool slide and
means for effecting the movement of said further slide
gripper jaws in a path parallel to the path of reciprocation
in a path parallel to the path of reciprocation of said
of said driver, means for guiding a staple forming strip 45 driver and said tool slide, means for guiding a staple
of wire to said jaws, laterally spaced abutments disposed
forming strip of wire to said jaws, laterally spaced abut
adjacent the path of reciprocation of said driver, means
ments adjacent the path of reciprocation of said driver,
operable at the start of the forward stroke of said tool
means operable at the start of the forward stroke of said
slide to effect the closure of said jaws to grip the said
further slide to close said jaws to grip said strip of Wire,
strip of wire, means operable at the end of said forward 50 means operable at the end of said forward stroke of said
stroke of said tool slide to move said jaws to position the
further slide to move said jaws to position the strip of
strip of wire gripped thereby in alignment with said
wire gripped thereby in alignment with said driver trans
driver transversely of said abutments so as to be drawn
versely of said abutments so as to be drawn against said
against said abutments and bent into the form of a
abutments and bent into the form of a staple on the rear
staple on the rearward stroke of said tool slide, and means 55 ward stroke of said further slide, means operable at the
operable at the end of the rearward stroke of said tool
end of the rearward stroke of said further slide to open
slide to open said jaws to release said staple at a point in g
said jaws to release said staple at a point in the path of
the path of said driver so as to be driven forwardly by
said driver so as to be driven ‘forwardly by said driver
said driver on the next forward stroke of said driver.
on the next forward stroke of said driver.
2. A brush making machine according to claim 1 60
6. A brush making machine according to claim 5
where said gripper jaws are pivotally mounted on said
wherein said gripper jaws are pivotally mounted on
tool slide, cam operated means being provided whereby
said further slide and cam means is provided such that
said jaws are pivoted at the end of said forward stroke to
said jaws are pivoted at the end of said forward stroke
position said strip of wire transversely of said abutments.
to position said strip of wire transversely of said abut
3. In a brush making machine, the combination of 65 ments.
means for forming and driving a staple to secure a tuft of
References Cited in the ?le of this patent
bristles in a brush stock comprising a reciprocably
mounted staple driver, gripper jaws mounted for recipro
UNITED STATES PATENTS
cating movement in a path parallel to the path of recipro
1,512,588
Fisher _______________ __ Oct. 21, 1924
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